<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" type="text/css" href="https://www.layuicdn.com/layui/css/layui.css" />
    <script src="https://www.layuicdn.com/layui/layui.js"></script>
</head>
<body>
<!-- layui-icon -->
    <i class="layui-icon layui-icon-heart-fill" style="font-size: 20px"></i>
    <i class="layui-icon layui-icon-face-smile" style="color: hotpink"></i>
    <div class="layui-icon layui-icon-headset"></div>
</body>
</html>